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A process is under control and follows a normal distribution with mean 100 and standard deviation 10. In constructing a standard -chart for this process, the control limits are set 3 standard deviations from the mean-i.e., 100 . The probability of observing an i outside the control limits is (.00135 + ,00135) = .0027. Suppose it is desired to construct a control chart that signals the presence of a potential special cause of variation for less extreme values of . How many standard deviations from the mean should the control limits be set such that the probability of the chart falsely indicating the presence of a special cause of variation is .10 rather than .0027?
there are ten balls in an urn. they are identical except for color. five are red four are blue and one is yellow. you
Assume rivets are defective independently of one another, each with the same probability. If 24% of all seams need reworking, determine the probability that rivet is defective?
if a population has a standard deviation ? of 25 units what is the standard error of the mean if samples of size 100
Create a set of data that can be modeled as a polynomial function. Please provide a reference to the data. Plot the data using Microsoft Excel including the equation for the fit. Discuss how closely the data seem to match to the best fit line.
question 1 what is a chi-squared test? provide a fully referenced explanation.question 2 provide a brief example on a
We want to test a hypothesis at the .01 level of significance. Based on your computations, would we reject or fail to reject the null hypothesis?
A single cell can either die, with probability .1, or split into two cells, with probability .9, producing a new generation of cells. Each cell in the new generation dies or splits into two cells independently with the same probabilities as the in..
Forecasters interest rate predictions over the period 1982 1990 were studied to see whether the predictions corresponded to what actually happened.
A survey on household income in Northeast NJ area gave the following numbers in thousands of dollars:
In the study of age and systolic blood pressure of five randomly selected subjects, a researcher reported the following data.
the proportion of left-handed people in the general population is about 0.1. suppose a random sample of 225 people is
Describe the financial environment at Genesis. Describe how the company's strategy for financing as a startup may no longer be suitable as it seeks to expand its operations globally.
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